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04-24-2019 12:02 PM
Init session info
Does TCP 3 way handshake gets started and completed here?
04-24-2019 01:31 PM
Yep. When the first packet (a SYN for a TCP connection) is assigned a session ID it moves from INIT to Opening then almost immediately to Active.
You would be lucky to get a "show session id" output that has any of the transient states, they're super fast. Microseconds fast.
04-24-2019 01:19 PM
Init means it's not an active session. Full breakdown here:
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000Clk9CAC
Short answer: when a session ends, the session state retuns to INIT. You can still see the most recent session details that used that particular session ID until new traffic allocates that ID.
04-24-2019 01:25 PM
Seems my understanding is that tcp 3 way handshake happens in active stage ?
Need to confirm with you?
04-24-2019 01:31 PM
Yep. When the first packet (a SYN for a TCP connection) is assigned a session ID it moves from INIT to Opening then almost immediately to Active.
You would be lucky to get a "show session id" output that has any of the transient states, they're super fast. Microseconds fast.
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